*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: #2DD4BF;
    color: #0A2540;
}

/* Scroll reveal animations — progressive enhancement, hidden by default for reduced motion */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }
    .reveal:nth-child(4) { transition-delay: 0.3s; }
}

/* Mobile menu */
#mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
#mobileMenu.open {
    max-height: 400px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0A2540;
}
::-webkit-scrollbar-thumb {
    background: #1E2D40;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2DD4BF;
}

/* Focus visible styles */
:focus-visible {
    outline: 2px solid #2DD4BF;
    outline-offset: 2px;
}

/* Button hover animations */
a, button {
    transition: all 0.2s ease;
}

/* Input focus animation */
input:focus, textarea:focus, select:focus {
    transform: translateY(-1px);
}